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Why doesn't await on Task.WhenAll throw an AggregateException?

... I don't exactly remember where, but I read somewhere that with new async/await keywords, they unwrap the AggregateException into the actual exception. So, in catch block, you get the actual exception and not the aggregated one. This helps us write more natural and intuitive code. Thi...
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Lightweight Java Object cache API [closed]

... advanced features, but if your not interested in using them - don't. But it's nice to know they are there if your requirements ever change. Here is an in memory cache. Created in code, with no configuration files. CacheManager cacheManager = CacheManager.getInstance(); int oneDay = 24 * 60 * 60...
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Folder is locked and I can't unlock it

When I'm trying to update or commit code from a project it's telling me that the folder is locked. When I try to "release lock" it says that there's nothing to unlock in this working space. ...
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Assign output of os.system to a variable and prevent it from being displayed on the screen [duplicat

... the output of a command I run using os.system to a variable and prevent it from being output to the screen. But, in the below code ,the output is sent to the screen and the value printed for var is 0, which I guess signifies whether the command ran successfully or not. Is there any way to assig...
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Returning an array using C

I am relatively new to C and I need some help with methods dealing with arrays. Coming from Java programming, I am used to being able to say int [] method() in order to return an array. However, I have found out that with C you have to use pointers for arrays when you return them. Being a new progr...
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Make an image width 100% of parent div, but not bigger than its own width

I’m trying to get an image (dynamically placed, with no restrictions on dimensions) to be as wide as its parent div, but only as long as that width isn’t wider than its own width at 100%. I’ve tried this, to no avail: ...
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“Parse Error : There is a problem parsing the package” while installing Android application

... You said that the first time you installed the application it worked fine. The only difference in the steps you outlined between the two versions are: The version number (I'm assume that this did not participate in breaking anything) The code The name of the .apk file Try renami...
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Java Date vs Calendar

... Date is a simpler class and is mainly there for backward compatibility reasons. If you need to set particular dates or do date arithmetic, use a Calendar. Calendars also handle localization. The previous date manipulation functions of Date have since been deprecated. Personally I tend to us...
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Standard concise way to copy a file in Java?

It has always bothered me that the only way to copy a file in Java involves opening streams, declaring a buffer, reading in one file, looping through it, and writing it out to the other steam. The web is littered with similar, yet still slightly different implementations of this type of solution. ...
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What are the most interesting equivalences arising from the Curry-Howard Isomorphism?

...mming life, and perhaps this contributes to my being utterly fascinated by it. It implies that for every programming concept there exists a precise analogue in formal logic, and vice versa. Here's a "basic" list of such analogies, off the top of my head: ...